The iris is divided into **eight concentric-radial zones**, mapped by clock position. Each zone has historical associations with autonomic reflexes in corresponding body regions. Zone findings (flattenings, protrusions, ANW shifts) are reported by zone name, not clock position, so the map below is the key reference.
**Zone clock positions**
| Zone | Right Eye (OD) | Left Eye (OS) | Historical associations |
|——|—————|————–|————————|
| **Upper-Central** | 12 o’clock | 12 o’clock | Mood regulation, energy patterns (both eyes) |
| **Upper-Nasal** | 1 o’clock | 10–11 o’clock | Cognitive, cervical spine reflexes |
| **Middle-Nasal** | 2–3 o’clock | 9 o’clock | OD: oxygen utilisation, cardiac/respiratory · OS: neurological, cardiac |
| **Lower-Nasal** | 4–5 o’clock | 7–8 o’clock | Urogenital, pelvic/lumbosacral zones |
| **Lower-Basal** | 6 o’clock | 6 o’clock | OD: renal, lower extremity · OS: renal, eliminative |
| **Lower-Temporal** | 7–8 o’clock | 4–5 o’clock | OD: hepatic, metabolic · OS: cardiac, splenic |
| **Middle-Temporal** | 9 o’clock | 3 o’clock | OD: respiratory, cardiac · OS: pulmonary, cardiac |
| **Upper-Temporal** | 10–11 o’clock | 1–2 o’clock | OD: cranial nerve, auditory · OS: neurovegative, speech |
**Note on mirroring:** The temporal and nasal sides swap between eyes. The left eye (OS) is a mirror image of the right eye (OD) — the nasal side of each eye faces the nose.
**Interactive zone overlay**
The zone map is available as a live polar overlay directly on the iris photo in the Results screen. When **Show zone overlay** is enabled (Settings → §8.3):
– **Hover + scroll** the mouse wheel over the overlay (Windows desktop) to cycle through clock-hour sectors. Each sector highlights as it becomes active, and the associated organ system or body region is displayed alongside any detected findings (FLAT, PROT, ANW) for that zone.
– **Click any sector** to open the full zone detail panel, which lists all findings for that zone and provides a free-text field for practitioner observer notes.
This makes the table above interactive during a consultation, scroll around the iris to cross-reference any zone with its organ associations without leaving the results screen.
